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Code Issues Releases Wiki Activity

ircd::ctx::posix: Reduce decisionals to static util; minor cleanup.

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This commit is contained in:
Jason Volk 2020-05-05 20:42:48 -07:00
parent 72ae3073d3
commit 598bbc45cc
1 changed files with 29 additions and 22 deletions
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51
ircd/ctx_posix.cc
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@ -23,8 +23,10 @@
namespace ircd::ctx::posix
{
static bool is(const pthread_t &) noexcept;
extern std::vector<context> ctxs;
extern log::log log;
std::vector<context> ctxs;
}
using ircd::always_assert;
@ -35,6 +37,9 @@ ircd::ctx::posix::log
"ctx.posix"
};
decltype(ircd::ctx::posix::ctxs)
ircd::ctx::posix::ctxs;
//
// Linker wraps/hooks; see ircd/Makefile.am LDFLAGS. These allow us to play
// nice with legitimate uses of pthreads by the rest of the address space by
@ -81,7 +86,7 @@ extern "C" int
__wrap_pthread_join(pthread_t __th,
void **__thread_return)
{
return ircd::ctx::current?
return ircd::ctx::posix::is(__th)?
ircd_pthread_join(__th, __thread_return):
__real_pthread_join(__th, __thread_return);
}
@ -105,16 +110,7 @@ __wrap_pthread_timedjoin_np(pthread_t __th,
void **__thread_return,
const struct timespec *__abstime)
{
const auto it
{
std::find_if(begin(ircd::ctx::posix::ctxs), end(ircd::ctx::posix::ctxs), [&]
(const auto &context)
{
return ircd::ctx::id(context) == __th;
})
};
return it != end(ircd::ctx::posix::ctxs)?
return ircd::ctx::posix::is(__th)?
ircd_pthread_timedjoin_np(__th, __thread_return, __abstime):
__real_pthread_timedjoin_np(__th, __thread_return, __abstime);
}
@ -158,16 +154,7 @@ extern "C" int
__wrap_pthread_setname_np(pthread_t __target_thread,
const char *__name)
{
const auto it
{
std::find_if(begin(ircd::ctx::posix::ctxs), end(ircd::ctx::posix::ctxs), [&]
(const auto &context)
{
return ircd::ctx::id(context) == __target_thread;
})
};
return it != end(ircd::ctx::posix::ctxs)?
return ircd::ctx::posix::is(__target_thread)?
ircd_pthread_setname_np(__target_thread, __name):
__real_pthread_setname_np(__target_thread, __name);
}
@ -177,6 +164,26 @@ pthread_setname_np(pthread_t __target_thread,
const char *__name)
__attribute__((weak, alias("__wrap_pthread_setname_np")));
//
// util
//
bool
ircd::ctx::posix::is(const pthread_t &target)
noexcept
{
const auto it
{
std::find_if(begin(ctxs), end(ctxs), [&]
(const auto &context)
{
return id(context) == target;
})
};
return it != end(ctxs);
}
///////////////////////////////////////////////////////////////////////////////
//
// pthread supplement